Tabulating machine



Feb. 1o, 194,2.

H. A. WElNLl-CH TABULATING MACHINE 6 Sheets-Sheet l Filed Nov. 12, 1951 BWL/ro mvmoL xmm-R- Feb. 10, 1942. H, A. wElNLlcl-l 2,272,450

TABULATING MACHINE Filed Nov. 12', 1951 e sheets-.sheet 2 'ATTORNEY- Feb. 10, 1942. H. A. wElNLlcH y 2,272,450

TABULATING MACHINE Filed NOV. l2, 1931 6 ASheets-Sheet 3 FlG.1b.

57 INVENTOR r 3a ATTORNEY- Feb- 10, 942- H. A. wElNLlcl-l TABULATING MACHINE e shee'tS-sheet 4 Filed NOV. l2, 1951 1M um E FIGB'.

TTORNEY- Feb. 10, 1942.

H. A. wElNLlcH f r'ABULATING MACHINE Filed NOV 12, 1931 6 Sheets-Sheet 5 ATfroRNEY- Feb. 1o, 1942. H. A, WEIN'UCH 2,272,450

TABULATING MACHINE Filed NOV. 12, 1931 l 6 SheehS--Shee'l'l 6 2/2 2.13 laf" Lf" 20 3 E fava 5oC/f7.5 1?

I I INVENTpR- Patented Feb. l0, 1942 TABULATING MACHINE Hermann Adalbert Wcinlich, Berlin-Charlottenburg, Germany, assignor, by mesne assignments, tov International Business Machines Corporation, New York, N. Y., a corporation of New York Application Claims.

The present invention relates to accounting machines and more particularly machines of the record card controlled type.

The invention is directed to improvements in machines of the type shown and described in the application of Felix Thomas, Serial No. 676,237, filed November 22, 1923 (now Patent #2,147,067, granted February 14, 1939) with a View to widening the range of usefulness of machines of this type so that a greater number of problems may be solved thereby. One such problem which will serve to illustrate the invention is the computation of bank interest for stated periods. In the computation of interest over a. specific period it is the practice to accumulate a sum of all daily balances for the period upon which multiplication by the interest rate per diem will result in the amount of interest for the period. A machine for computing the sum of such daily balances is shown and described in the application of George F. Daly, Serial No. 530,860, filed April 17, 1931 (now Patent #2,036,683, granted April 7, 1936). In such machine and in others per- -forming the same type of operation it is customary to prepare a perforated record card for each transaction and where several transactions take place in one day, there will be a corresponding number of record cards prepared. Where no transactions take place for any day, there will be no record cards for that day.

In operation the cards are arranged in chronological order according to date and special cards inserted in those positions in which no transactions were had for that day. These cards are perforated with the date designation preferably in the form of consecutive calendar days so that before insertion in the tabulating machine the calendar period for which interest is to be computed will be represented by a card or group of cards for each day in the period. As the cards are fed through the machine, those groups of cards which are comprised of several daily transaction cards will be separately totalized and the total entered into another accumulator. After each days total has been obtained, it is added to the balance of the preceding day, thus forming an accumulative or progressive balance of the successive days.

Where no transactions have taken place for a particular day in consequence of which the special card is inserted Afor that day, the previous days balance will be added to itself since that days balance not having been changed will be the same as the previous days. Where the interest period extends over an appreciable length November 12, 1931, Serial No. 574,531 Germany November 14, 1930 of time, it frequently happens that there are no transactions for a considerable number of days within that period which would necessitate the insertion of a corresponding number of special cards in order that the chronological sequence remains intact. As an example, where the interest is computed for a period of say 180 days, if no transactions had taken place for say 90 days, it would necessitate the inclusion of 90 special cards in the total number'of cards to pass through the tabulator. This requires the special perforation of these cards in accordance with the days in the sequence which they are to represent and also the additional work imposed on the machine in order to pass these cards therethrough.

It is the purpose of the present invention to obviate the necessity for the insertion of these special cards and provision is made for automatically entering the daily balances into the progressive totalizer under control of switching devices which determine for which days there Ithe machine for fifteen successive cycles.

transferring mechanism, as will be further ex' have been no transactions and cause repetition of the entry of the last daily balance. Accord ing to this arrangement for every inactive day the previous days balance will be entered into the progressive totalizer so that Where fteen days in succession are inactive, the last previous balance will be entered fifteen times into the progressive totalizer for which it will be necessary to operate the transferring mechanism of This plained, causes the entry into the progressive totalizer of the amount standing on the totalizer which carries the daily balance. According to a modication of the invention, means are provided for obtaining this entry in six cycles by use of the successive addition type of multiplication, that is, the last balance may be entered ve times and after the entering connections have been shifted one denomination order higher a single entry will enter ten times the daily balance, this being the equivalent of ten successive entries in the usual way.

In its preferred form the controlling mechanism for determining the number of times a daily balance is to be repeated comprises a pair of settable commutator devices one of which is positioned under control of the record cards to represent the particular day perforated upon a record card. The second device is set up under control of the totaling and transferring mechanism of the machine to successively represent the days of the interest period. A comparison is made between the two setup devices and as long as they lare in agreement record cards will be successively analyzed, their data items summarized and entered into the progressive totalizer. Where several daily cards are lacking, the next succeeding date set up on one of the devices will represent the next step upon which transactions occurred. This setup will then disagree with the machine controlled setup, the difference in the setting being equal to the number of days intervening on which no transactions took place. machine will thereupon perform a series of transferring operations to enter the last daily balance into the progressive accumulator, each transfer operation serving to advance the machine setup device one position, thus gradually approaching the setup upon the card controlled device. When the devices are again in agreement the next days transaction will be summarized and the machine controlled accordingly.

Other objects and advantages will hereinafter be pointed out in the specification and claims and shown in the drawings which by way of exempliilcation show one embodiment of the invention.

In the drawings:

Figs. 1, la and 1b, taken together, show the complete wiring diagram of the electric circuit of the machine together with several of the mechanical features illustrated diagrammatically. In reading these drawings, Fig. 1a is to be disposed directly below Fig. 1, and Fig. 1b to the left of Fig. 1a.

Fig. 2 is a sectional view of the card controlled date setup device.

Fig. 3 is a diagram of the restoring mechanism for the device in Fig. 2, the view being taken along the lines 3-3 of Fig. 2. Y

Fig. 4 is a detail view of the printing mechanism of the machine.

Fig. 5 is a detail of a circuit controlling switch.

Fig. 6 is a detail circuit diagram of the date comparing devices.

includes sockets Il which are connected to the accumulator magnets I1 (Fig. 1b).

At the upper end of the plug board there is shown the circuit diagram of the automatic control and group indicator unit. When certain columns are to be used for automatic controlling plug connections are inserted between selected sockets Il and sockets I8 of the automatic control unit. If straight controlling is being performed without group indicating, the connection is completed between plug sockets I9 and Il. On the other hand, if group indicating on any desired columns is required, connections may be made between the selected sockets 20 and plug sockets I8. On columns in which there is to be neither control nor group indicating but simply accumulator energization suitable plug connections are made directly between sockets I5 and 'I'he above description briefly indicates some of the principal plugging operations which may be employed, the effect of certain of which will be more particularly pointed out later in connection Fig. 7 is a wiring diagram of a modified form of the invention.

Before describing the mechanism whereby the daily balance totals are repeatedly entered into a progressive totalizer, a b'rief rsum will be given of the manner in which totals may be transferred from one accumulator of the machine to another which is more fully set forth in the cof' pending application of Felix Thomas, Serial No. 676,237 (Patent #2,147,067).

Referring to the diagrams of Figs. 1, 1a and 1b, the record cards are successively fed from a stacker I0 one at a time by means of a picker II into engagement with the usual feed rollers which advance them to the usual discharge stack. The cards are advanced past the upper analyzing brushes UB and exactly one machine cycle later past lower analyzing brushes LB. In the diagram only a few brushes are illustrated but it will be understood that the brushes may and usually do extend across the entire card so as to cooperate with any desired columns therein. Upper and lower card levers are provided to close contacts UCL and LCL respectively during passage of cards under the card levers. When cards are not under the levers the contacts are opened.- Suitable wires are here shown cabled and indicated at I2 and I3 respectively and which respectively connect the lower and upper brushes with plug sockets on the tabulator plug board (Fig. la). These socketsl are indicated at Il and I5, the former for the upper brush positions andthe latter for the lower brushes. The plug board also with a specific problem.

The so-called automatic control circuit between the upper and lower control circuits includes contacts 2| and magnets 22. The energization of magnets 22 is adapted to close corresponding contacts 23 to thereby establish the so-called control circuit 24 which extends serially through all the contacts 23. This circuit is established on each card cycle so long as the control perforations in two successive cards agree. Contacts 24a are the usual group indicator contacts which function to interrupt thek accumulator circuit after the passage of the nrst card to suppress the adding in of further amounts upon the tabulating accumulator to which they are plug connected.

General features of circuit diagram merals, for instance, a group of contacts marked i PI, P2, P3 mounted on one shaft, another group marked CI, C2', C3, etc. on another shaft and so on.

All contact cams are insulated from each other and from the shaft upon which they are mounted. Current for the entire tabulator is supplied through a suitable source through switch 25 which when closed supplies current to the left side of line 26 and right side of line 21. During adding operations the machine is driven by a tabulating motor TM (Fig. l) controlled by a group of cam and relay controlled circuits indicated at 3l) and is driven during total taking operations by a reset motor RM controlled by a group of circuits, contacts, and relays designated generally at 3|. When the tabulating motor TM is in operation it feeds the usual perforated tabulating cards bearing differentially arranged index points representing digits rstbeneath the upper analyzing brushes UB and exactly one machine cycle later beneath the lower analyzing brushes LB.

By means of the group control mechanism, groups of cards as represented by the same data entry in certain selected columns may be operated upon separately, the items of each group being accumulated and a total of them taken before the machine begins operation on the following card group. As the perforated cards'pass the lower brushes their index points instantaneously close circuits through the proper lower analyzing brushes LB to energize accumulator magnets l1. As usual the timed energizations of these magnets control mechanism for entering the data corresponding to the card reading on the accumulator wheels 32 (see Fig. 1b). When any magnet I1 is energized ,it causes contacts 33 to close energizing a printer magnet 34 to select the type corresponding to the entered data for printing. In this fashion the accumulated items may be listed. These functions do not enter specifically into the present invention and will not be described in detail as they are well understood in the art.

In Fig. 4 is shown the printing mechanism through which the type bar 35 is positioned relatively to the platen 36 to bring the proper type 31 into printing position opposite the platen. The total shaft 38 driven by the reset motor RM is provided with a. cam 39 cooperating with a roller 40 carried by an arm 4| operatively connected to a shaft 42.

As the cam rotates, shaft 42 is rocked in ,a clockwise direction and an arm 43 secured thereto and linked at its free end to printing crosshead 44 serves to raise the type bars 35 in synchronism with the total taking mechanism so that the type 31 successively pass printing position opposite platen 36. The type bar 35 is arrested under control of printing magnet 34 which when energized attracts its armature 45 and through a call wire releases latch member 46 normally 'holding stop pawl 41. When the pawl is so released it is spring-operated to engage the ratchet teeth formed on the type bar 35 to prevent further upward movement of the type bar thus holding a particular type 31 in printing position. The usual printing hammers 48 are provided to impel the type against the platen.

The total taking mechanism comprises the usual stepped cams 50a and contact devices 51a (Fig. 1b) which operate in synchronism with the printing mechanism during total taking operations to stop the type bars at a position corresponding to the setting of the stepped cams 50a.

The contact devices 51a for each counter are controlled individually for each accumulator and Transferring, resetting and printing operations After the tabulation of the group is completed One clutch the resetting and printing of a total may be efclutch magnet 5I, contacts 52 which are closed at all times when the card feed clutch magnet is deenergized, contacts LI, switch $0, stop key S, contacts P5 and 53 to the other side of the line 21. The energization of the reset clutch magnet 5I attracts its amature and closes contacts 54 which establish a holding circuit for the reset magnet 5I traced as follows: From reset clutch magnet 5l, through contacts 54, thence through contacts L2 now closed, up to contact 53 and back to the right side of the line. While reset motor RM is rotating and reset magnet 5| energized, a suitable clutch member 55 (Fig. 1b) will couple the drive shaft from the reset motor RM to two gear disks 56, 51. The former gear 56 is effective only during the last half of the cycle due to the absence of teeth on half of its periphery and through a gear 58 rotates a reset shaft 56 and resets any accumulators which are selected for resetting to zero. Gear 51 is utilized for driving a gear 60 which through clutch 6I during total transferring operations, drives the main driving shaft 62 for the accumulators during lresetting operations. Gear 51 drives gear 60 which through clutch 6I drives r shaft 62. Prior to the resetting of the accumulators the printing of the total standing upon the -accumulators or the group numbers thereon is effected. For effecting this printing the stepped cams 50a heretofore mentioned are utilized. During such printing operations cam contacts P2 and P3 shown in the lower part of the diagram (Fig. 1a) serve to supply current to the common bars 63 of the printer magnet sections. The common circuit from the right side of line to the cam contact devices P2 and P3 leads through a non-total printing switch 64, which, when opened, suppresses the printing of totals. The actual printing operation is controlled from the stepped cams 50a previously mentioned.

During resetting, total transferring and total printing operations, provision is made for preventing the starting up of the main tabulator control circuits until the transferring, printing and resetting is completed. This is effected through cam contacts P5 which'interrupt the main circuit of the tabulator from the right side of line. The cam contacts Pl serve at the proper time in the resetting cycle to establish a circuit 65 to motor RM to shunt out the reset magnet 5|. These contacts serve to maintain the reset motor RM in operation until the end of the reset cycle and upon being opened interrupt the resetting operation bringing the reset motor to rest. Just before the resetting operation is completed upper contacts P4 close. The closure of these contacts provided the automatic start switch 66 is previously closed establishes a circuit to restart the tabulating operation upcn vthe next group. The purpose of this circuit is to permit the automatic starting of the tabulator if there are additional cards in the machine. If switch 66 is open, the tabulator is not started autonatically but may be restarted by depressing start key ST. The automatic start-up contacts,

namely, the upper of contacts P4 break immediately after the usual holding circuits are established for the operaticn of the tabulator, and at thetime the P group of cams come to rest these upper contacts are open, as shown.

If automatic total printing and resetting is not desired, switch 50 may be opened and the initiation of resetting effected by the depression of the reset key R.

The shaft 62 is the main driving shaft of the tabulator. This shaft through suitable gearing generally designated 51 is adapted to drive the clutch shaft 59. 'I'he clutches 99 are of the form usually used in tabulating machines and through suitable gearing drive the accumulator wheels 92. During the normal operation of the tabulator when items are being accumulated or set up upon the accumulative accumulators in accordance with the perforations of passing record cards, the shaft 52 is driven from the tabulating motor (note Fig. l), in which this shaft is shown projecting from one of the card feeding gears.

Disposed on the shaft 52 is a clutch 19 (Fig. lb) which is adapted to clutch the tabulator motorto the main portion of the shaft 52 which drives the accumulators. When clutch 19 is disengaged this shaft 92 may be driven by the reset motor provided clutch 5| is engaged. It will be understood that drive from the reset motor is only effected when transfer of total operations is to take place.

Disposed upon reset shaft 59 are a number of clutch devices 1|. These clutch devices are of the form usually used in tabulators and when disengaged are adapted to throw out the reset mechanism for the particular accumulator with which they are associated.

With the usual tabulator the circuit from the total control contacts 5|a extends directly to common bars 12. When it is desired to transfer totals a suitable switch mechanism must be provided to break the circuit to the common bars 12 and to establish a circuit to plug positions 19. A separate switch device is employed for each accumulator. The details of this switch device are shown in Fig. 5. A suitable insulating block is slotted and provided at one side with wide contact lugs 14. 'I'hese are directly connected to the controlling contacts 5|a (see Fig. 1b) Multiple lugs and 15 are provided at the opposite side of the block, the former connecting respectively to the common bars 12 and the latter being connected to the individual plug sockets 19. Disposed intermediate the contact blocks 14 and 15-15 is a slidable bar 11 carrying contact blades 15. 'Ihe arrangement is such that with the slide 11 in upper position contact is established between 14 and 15. With the slide 11 in lower position contact is established between 14 and 15. The slide is normally maintained elevated by a spring 19 and is adapted to be lowered by energizing a magnet 89.

As shown in Fig. lb there is one of these switch devices for each accumulator section. I'here are corresponding individual magnets 89 for each accumulator section. Magnets 89 are disposed in circuits which terminate at one end in plug sockets 5| and which, at the other end, extend to a line 92. 'I'he magnets 88 previously referred to are disposed in similar circuits terminating at one end at plug sockets 89 and extending through contact devices 99 to a line 9|. The contact devices 99 are interlocked with the reset clutch devices 1| so as to be closed when these reset clutches are withdrawn to prevent the resetting of the accumulators.

Disposed in line 99 is a magnet 92, which, when energized, withdraws or disengages clutch 19. Disposed in a line 99, which, in effect, is a continuation of line 92, is a magnet 94, which, when energized, is adapted to engage clutch 9|. Line 99 extends upwardly, as shown in Fig. l, and connects to a pair of contacts 95, which contacts are adapted to be closed by the armature of the clutch magnet 5|, when this magnet is energized.

Let it now be supposed that an amount is to be transferred from the No. 2 accumulator to the No. 3 accumulator. The operator by means of a suitable plug connection plugs up the plug sockets 19 of the No. 2 accumulator with the corresponding denominational order sockets I9 of the No. 3 counter by means of a connection such as 19a. Then a single plug connection lla is placed between plug socket 9| of the No. 2 accumulator and the socket 99 of the No. 3 accumulator. This last mentioned plugging between 9| and 99, in effect, connects magnets 92, 94, 99 of the No. 3 accumulator, and 89 of the No. 2 counter in series, the circuit extending through the contacts 99 of accumulator No. 3 also. This circuit may be traced from line 29 (Fig. 1)\wire 9|, (Figs. la and 1b), contacts 99, magnet4 95, plug connection 8|a, magnet 89, wire 99a, wire 82, magnet 94, wire 99, magnet 92, wire 99 (Figs. la and l), contacts 95, contacts L2, 59 to line 21. The reset clutch 1| of the No. 3 accumulator is then disengaged to thereby close contacts 99. The operator then presses the reset key R (Fig. 1) or if automatic total printing is desired the switch 59 will have been previously closed and resetting will be initiated automatically.

Just after the reset cycle starts contacts 95 (Fig. l) will close to complete the circuit just traced. Magnet 92 will be energized disengaging clutch 19. Similarly magnet 94 will be energized engaging clutch 5|. Shaft 52 will then at the proper time in the cycle, namely, the initial part thereof, be driven by the reset motor RM. While this shaft is in rotation the contact devices 5|a of the No. 2 accumulator will take a reading of the stepped cams 59a. Circuits will be established through the printer magnets 94 of the No. 2 accumulator just as if an ordinary total was being printed, However, these circuits instead of extending directly to the common bars 12 and back to the left side of the line will flow through the plug connections 13a mentioned, to the multiple sockets i5, thence through the accumulator magnets I1 of the No. 3 accumulator and back in the usual manner to the left side of the line. In this way the magnets I1 of the No. 3 accumulator will be energized at varying times in the machine cycle and the amount standing on the No. 2 accumulator will be set up on the No. 3 accumulator.

concurrently in the printing section of the machine the printer magnets 34 corresponding to the No.2 accumulator will be energizedy and print the transferred total. If desired, there may be a printing of the transferred total on the No. 3 accumulator. To secure this result switch 96 of the No. 3 accumulator must have first been closed, otherwise the disengagement of the reset clutches 1| will have opened contacts 91, and prevented the printing. Ordinarily switches 91 would have been left opened and the transferred total would not have been printed on the record sheet which receives the records of the entries of the No. 3 accumulator. During this total transferring and printing operation the magnet of the No. 3 accumulator has been energized thus disengaging clutch 85 and preventing the rocking of the sleeve 84 and the lowering of contacts 5|a onto the stepped cams 59a of the No. 3 accumulator. If such contact devices 5|a were not rendered inoperative at this time they would interfere with the movement of the stepped cams 59a as will be readily understood.

After the total transferring operation is completed contacts 95 (Fig. 1) will open and the machine will then be ready to tabulate in the usual manner from record cards entering items from the cards as desired.

It will be understood that the plug connections explained above can be placed intermediate any desired accumulators. For example, after the i amount is transferred from the No. 2 to the No. 3 accumulator and further entries received on the No. 3 accumulator from the record cards, the plug` connections can be inserted between sockets 13 of the No. 3 accumulator and sockets I6 of the No. 2 accumulator. Similarly the single plug connection could be inserted in the socket 89 of the No. 2 accumulator and in socket 0| of the No. 3 accumulator. If the total transfer operation is then repeated amounts can be transferred back from the No. 3 accumulator to the No. 2 accumulator. Similarly entries from any accumulator can be transferred to any other accumulator or vice versa, the mere re-plugging only being necessary to control the transfer of the total operation to the desired accumulator.

The contacts 90 heretofore referred to are in the nature of safety contacts and compel the withdrawal of the reset'clutch 1| for any particular accumulator before entries can be transferred into it from any other accumulator. It is obvious that resetting should be suppressed upon the accumulator into which an entry is to be made, otherwise the amount would be rst set up on the accumulator and then immediately removed therefrom by the resetting operation.

Having described the construction and operation of the machine to which the present invention may be applied, the particular details of the invention will now bedescribed.

Referring to Fig. 2, a sectional view of one of the date setup devices is shown. The construction of this mechanism is similar to the usual accumulator construction having a record card controlled magnet |1a adapted when energized to trip the accumulator clutch 69a to establish a driving connection between the main tabulating shaft 62 and indicating wheel 32a. This clutch structure is identical with the counter clutch structure shown in more detail in Fig. 1b.

A gear |00, driven by the gear which drives the indicating wheel 32a carries a pair of electrically connected brushes IOI insulated therefrom. Cooperating with the brushes is a commutator |02 provided with segments |03 corresponding in number and position to the several digit indicating positions of the indicating wheel 32a. The arrangement is such that the brushes are angularly displaced according to the reading of the wheel 32a. One of the brushes cooperates with the segments |03 and the other engages a conimon segmental conductor |04 Whose surface conforms to the configuration of the commutator |02. Thus where a particular number is entered upon wheel 32a, one of the brushes I 0| will be in position to connect the corresponding segment |03 with the conductor |04. 'I'his device is adapted to receive the calendar day entry from the record cards. A similar set up device shown diagrammatically in Fig. 6 is provided to receive a setting under control of the totaling mechanism. This device comprises a commutator I02a. having segments I03a which cooperate with a pair of brushes |0|a mounted upon a gear I00a. Gear |00a in this instance has driving connection with a gear I 05 to which is secured a ratchet |06. Rachet |06 is adapted to be advanced stepby-step under control of a magnet |01 which upon energization rocks its armature |08 to effect advance of the ratchet wheel. Each of the seglIl ments |03 is electrically connected by means of wires |09 to the corresponding segments |03a of commutator I02a.

In Fig. 6, three pairs of set up devices |02, |02a have been shown to provide for the control of the machine in accordance with the calendar days of the year. The cardcontrolled setup devices have been designated generally'A, AI and A2 corresponding to the units, tens and hundreds positions respectively, and' the machine-controlled setup devices have similarly been labelled B, BI, and B2. y

Whenever the number set up on devices A, AI, A2 corresponds to the number set up on devices B, BI, B2, a series circuit will be completed through allof the commutators. In the case of a number as 261, the brushes of A and B will be set at 1, the brushes of AI, BI will be set at 6, and the brushes of A2, B2 will be set at 2. With this setting 'a circuit may now be traced on the diagram of Fig. 6 from line 26, through a wire I|0 to the conductor |0411 of device B, thence through brushes |0| a to the 1 segment I03a, through a Wire |09 to the,.1 segment |03 of device A, thence through brushes IOI, conductor |04, to a wire III which connects with conductor I04a of the BI device. The circuit will continue through brushes |0|a of the BI device, to the 6 segment, through a wire |09 to the 6 segment of the AI device, its brush IOI, and conductor |04 and thence through a wire I|2 to the conductor |04a of the B2 device. In a similar manner the circuit will continue through the A2 device to a wire II3, thence through a pair of relay coils ||4 and |I5 to the other side of line 21.

It is thus apparent that whenever the two devices are similarly positioned, a circuit will be completed through the relay coils ||4 and IIS. The function of these relays will be explained later.

Magnet |01 receives an impulse during each operation of the totaling mechanism. A cam contact PI 0 is adapted to close momentarily once during each totaling operation to complete a circuit from line 21, contact PIO, magnet |01, and back to line 26. This will advance the units set up device B one digit.

Meshing with gear |00a is a gear- ||6 which carries a cam |I1 which is adapted to close a contact |I8 whenever the brushes |0|a are positioned at 9. With the B device so set the advancing impulse through contact PI 0 will branch through magnet I01a of the BI device, wire |I9, contact I|8 of the B device, to line 26 causing the Bl or tens order to advance one step. The BI device is also provided with a contact IIB which in a similar manner will control the tens transfer operation to the next highest order.

The devices shown in Fig. 6 are included in the diagram of Fig. 1 in simplified form.

In Fig. 3 is shown the resetting mechanism for zeroizing thedevice shown in Fig. 2. A magnet |20 when energized is adapted through its armature |2| to shift a clutching member |22 slidably keyed to reset shaft 59 into engagement with the resetting gear |23 of the card setup device. Magnet I20 is adapted to be energized during the last totaling or transferring operation of the machine preparatory to the tabulation of a new group of cards so that the device may be in position to be set in accordance with the data contained on the first card of the suced upon energization to close its normally open points IIla and coil Ill causes closure of its points Illa in the same manner. Points Illa are connected in series with the cam contacts PI which as has been pointed out above close during each totaling and resetting operation to short-circuit the reset motor holding circuits to terminate the resetting operation. As long as relay points Ilia remain open, this shunting circuit cannot be completed and the machine will continue performing totaling and transferring operations indenitely. Relay points Illa are included in a circuit through magnet I2! and a pair of contacts PII which close each total and reset cycle. With relay points Illa open the magnet I2Il can, of course, not be energized.

The specic devices and circuits having now been particularly pointed out the operation ofthe entire machine will be reviewed with reference to a speciilc problem which will serve best to v point out the coordination of thevvarious elements. Assume that it is desired to compute the interest for a thirty day period during which deposits have been made in accordance with the following table:

Tablel Deposits l2) 52 Bhnk Table II ACC #i ACC #2 Dayv degli daily ACC #3 to balances 29 450 9, 917 ao 45oV 10,361

'I'he column headed Daily totals contains the balance of a particular's day transactions. The column headed Daily balances represents the progressive total of the several daily totals, while the last column represents the sum of the daily balances of the account. This column is not printed on the report sheet but is shown in connection with the report to indicate the operation of the machine. Above the report are indicated the accumulators which handle the amounts represented under such headings. Before proceeding with the tabulation of the cards, certain plug connections are to be made to cause entry of the amounts into the proper accumulators and also to secure the proper transferring operations.'

The upper brushes UB which sense the eld of the record cards in which the day is perforated are plug connected by plug connections Ila to the magnetslla of the date setup devices A, AI and A2. 'I'his same field is also associated with the automatic group control devices through plugging connections heretofore traced. 'I'he lower brushes which read the ileld of the card perforated in accordance with the deposits are plug connected to both accumulators No. 1 and No. 2. Accumulator No. 1 is arranged to total print and reset during totaling operations while accumulator No. 2 is arranged to total print without resetting for each totaling operation and at the same time transfer the amount contained therein into accumulator No. 3. Accumulator No. 3 is arranged to receive entries from accumulator No. 2 during totaling operations without resetting. The detailed plugging connections to eifect these operations have been traced in detail above and need not be repeated here.

With the setup devices B, BI and B2 set at 0, 0, 0, the group of cards ls placed in the supply hopper. Preliminary operations are rst effected to advance the first card to the sensing brushes and as usual before cards can be fed, the motor control relay magnet I (Fig. 1) must be energized. One way to do this is to close the autocontrol switch III which energizes magnet through a circuit fr om line 26. magnet I8., relay magnet ISI, switch |33, contacts P-l and Il (both closed) to line 2l. As a result, contacts Ina of magnet |30 are closed.

With the auto-start switch and auto-reset switch 50 open, the operator closes start key oontacts ST momentarily to complete a circuit from line 26, motor TM, feed clutch magnet |374. relay magnet I", contacts ST, Ina, S, P'-.l and I2 to line 21. The circuit is held through contacts lua and T-I, which latter contacts open near the end of the cycle and the machine comes to rest with the first card advanced to the first pair of feed rollers. The operator again closes contacts ST to effect a second feed cycle near the end of which contacts T-I again open to break the circuit before the leading edge of the card has closed the upper card'lever contacts UCL, so that the machine again stops with the leading edge of the card insulating the brushes UB from their contact blocks. At this point no entries have been made into the accumulators since the lower card lever contacts LCL through which the accumulator entry circuits pass are still open. Circuits are completed, however, through the upper brushes UB to energize the magnets IIa of the A device. 'I'his A device is constructed similarly to a regular accumulator except that it is not provided with tens carry devices and has the usual clutch knockout mechanism which .75 knocks and holds out the entering clutches from the so-called zero time to the commencement of the next cycle. As a result, all Awheels of the A device are advanced ten steps or a complete revolution during each o1' these two preliminary cycles, leaving the wheels standing at zero when the machine stops.

The operator now initiates a third feed cycle as before, this time opening the stop key contacts S immediately after closing the start key contacts so that the contacts UCL (now closed) do not continue the operation. As a result, the machine stops with the first card at brushes LB and the second card at the brushes UB. During this cycle, the day number 1 is read from the ilrst card and entered into the A device.

Switches 66 and 50 are now closed and switch |33 is opened. The operator then closes the reset contacts R to complete a circuit from line 26, motor RM, magnet 5|, contacts 52, R, L-Z and 53 to line 21. Thls'initiates a total print and reset cycle of operations. During this cycle of operation no printing or transferring takes place since the accumulators are clear and during which also the closure of contact P| will cause advance of the brushes of device'B to represent 1 thereon. With both the A and B devices representing 1, relay magnets ||4 and ||5 are energZed. The former closes its contacts ||4a to enable energization of reset magnet |20 of the A device and the latter closes its contacts ||5a to enable contacts P| to short circuit reset clutch magnet 5|, so that the reset motor RM is deenergized after one cycle of operation. Near The A setup device is again set to zero and the B device advanced'another step to 4. 'I'he data on thevcard of the third day is similarly introduced into the accumulators and total printed in the same manner. As that data is being entered into the accumulators the upper brushes will set the devices A, Al to represent 17, the date of the next succeeding card at which time the device B the end of the reset cycle when upperY contacts P-l are closed, the motor TM is energized through a circuit from line 26, motor TM, magnet |34, relay magnet |35, switch 66, contacts of the stop key, upper contacts P-4, LCL, P-5 and 53 to line 21. Upon resumption of tabulating the card of the first day will pass the lower brushes and the amount thereon entered into accumulators No. 1 and No. 2. At the samev time the date designation of the next card will be entered into device A setting it at 2. During this entering cycle the second card will have passed the upper brushes and the control mechanism sensing the change in day designation will automatically initiate a total printing and reset cycle of operations during which the amount in accumulator No. l is printed and the accumulator reset and the total in accumulator No. 2 also printed and transferred into accumulator No. 3.

Early in this cycle cam contact P|0 will close to cause advance of device B to represent 2. Since device A is also set at 2 coils H4 and ||5 will become energized to close their respective points ||4a and ||5a. Later in this total printing cycle the closure of contact Pl will complete the reset motor shunting circuit since relay points ||5a are closed causing the total printing operation to terminate and, provided the machine is set for automatic restarting, card feeding will resume. During this total printing operation since contact points ||4a are also closed closure of'cam contacts P|| will energize magnet |20 to effect resetting of device A.

Sensing of the third card'by brushes UB will set device A at 3 and the amount on the second card will be entered into accumulators No. 1 and No. 2, following which the group control mechanism will automatically initiate a total printing and reset cycle during which accumulator No. 1 again total prints and clears and accumulator No. 2 prints the amount now standing therein and also transfers the same to accumulator No. 3.

is still set at 4. The automatic control mechanism will now initiate a total printing and reset cycle during which the totals are printed and transferred in the now familiar manner. However, since the two setup devices are in disagreement relay points Illa and ||5a will be opened, the former preventing the resetting of the A, A| devices and the latter preventing the completion of the reset motor shunt circuit so that the machine will enter upon a second total print and transfer operation during which the amount standing on accumulator No. 2 will be printed and entered into accumulator No. 3. During this cycle device B will be advanced one step.

The two devices being still in disagreement, another total print and transfer cycle will ensue. These cycles of operation will continue until the two setup devices are in agreement whereupon relay points ||4a and |I5a will close permitting the restoration of devices A, AI and the resumption of card feeding operations. In this manner the remaining cards of the group shown in Table I will be tabulated and the results printed. Since the interest period, assuming the problem under consideration, is a thirty day period and since the last transaction was had on the eighteenth day, it is necessary to insert at the end of the group a blank card having perforations representing 30 in the day iield. The purpose of this is to set up the A, AI device at 30 to cause the repeated operation of the transfer mechanism to enter the balance of the account as of the eighteenth day into accumulator No. 3 once for each of the days between the eighteenth and thirtieth. It is assumed for the sake of simplicity of disclosure of the circuits that the operator is in constant attendance at the machine, and is observing the indicating wheels ofthe A device. Accordingly, when the day number 30 appears, he opens the auto-start switch 66. When the devices B, BI and A, AI are again in agreement, the machine will come to rest and accumulator No. 3 will contain an amount shown on Table II as 10367 which is the sum of the daily balances and upon which the interest for the period may be computed. By providing suitable plug connections this amount may be printed on the report sheet, if desired.

For the sake of simplicity, automatic resetting devices for accumulators #2 and #3 are not shown. To reset these accumulators, their reset clutch sleeves |22 (Fig. 3) are engaged and the machine sent through a manual reset cycle during which the accumulators are zeroized. To reset the B devices, repeated manual resets may be effected, during each of which the devices are advanced one step until they reach zero. These devices, however, are in the nature of stepping switches and with access thereto each order may be manually advanced to zero by rocking its armature |08 (Fig. 6) or by rotating its wheel |00a.

'I'he foregoing has presupposed a single card for each day, such cards being so-called summary cards, so that the data on each represents the total of transactions for that day. Where it is desired to feed so-called multiple card groups wherein there are several cards for each day number, this can be done by allotting two daynumber fields in each card with the related day number punched in one of the fields for all the cards and also in the second field of the first card oi the group only. The first neld is then plug connected for group controlling and the second is plug connected to the A devices. As a result, the day number of each group is entered only once into the A device when the first card of the day number group passes the upper brushes. The machine is operated just as already explained and as a result, when a group change is sensed, transfer cycles take place in accordance with the setting of the A device, which setting is that of the day number oi' the next following group.

The foregoing problem has been explained in connection with the preparation of a printed form but the printing, if desired, may be dispensed with and the result obtained without the detailed preparation of the record sheet.

In Fig. 7 is shown a modined form of wiring whereby the number of transferring cycles necessary to provide for the inactive days may be considerably lessened. Instead of operating the transfer mechanism for as many cycles as there are missing cards, it will be suiiiclent to take only as many cycles as are represented by the sum of the denominational orders of the number of missing cards. For instance, where 63 cards are missing, instead of taking 63 transfer cycles with the modified arrangement, 9 will be sufilcient, during the first three of which the last previous balance Awill be entered three times as before.

During the next six the entering connections will be shifted to enter the amount one denominational order higher for each place thus, in effect, entering ten times the number for six successive cycles. This is the well-known system of multiplication by successive addition and use is made of a column shifting or selecting device generally designated 200 in Fig. 7.

'Ihe column selecting device comprises a sliding bar provided with a plurality of segments 202 which are connected by wires 200 to the plug sockets 13 of the read-out mechanism of the accumulator from which it is desired to transfer the data. Cooperating with these segments are relatively stationary wipers 204 which may be connected by means of wires 205 to plug sockets I6 of the accumulator to which the data is to be transferred. Slider 20| normally occupies a position as shown in which it is held by a springpressed latch 206 against the tension of its actuating spring 200. With the slider 20| in its extreme right hand position, wires 203 will be connected to corresponding denominational order wires 205. Rocking of latch 206 will permit slider 20| to shift one place to the left into cooperation with latch 201 thus connecting wires 203 to the wires 205 representing the next higher position. Release of member 20| by latch 201 will permit t..-e member to shift still another place to the left in which position it will abut the restoring cam 209. Rocking of latches 206 and 201 is controlled by their respective magnets 2 I0, 2| I.

The day setup devices A, B are set in accordance with the units order, AI, BI in accordance with the tens order and A2, B2 in accordance with the hundreds order. With the same setting on A and B, a circuit will be completed from line 26 through device B, device A, magnet 2| 0, relay coil 2|2, contact P|2, to line 21. With the same reading on devices AI, Bi, magnet 2| and relay coil 2| 3 will be energized and with the same I setting on devices A2, B2, relay coils 2M and IIB will be energized.

Each pair of setup devices is provided with a stepping magnet |01, |01a, or |01b which are separately connected by means of wires 2|0 to segments 2|1 on the sliding bar 20|. For this form of the invention the tens carry devices H1.,l H8 and related wiring are not required. The' segments 2 1 cooperate in succession with a wiper 2|0 electrically connected to the cam contact PIO. With slider 20| positioned as shown. closure-of contact -PIO will energize magnet |01. With the slider shifted to its mid position, magnet |01a will receive the impulses, and with the slider in its left-most position, magnet |01b will be connected to the contact PIII.

'I'he operation of the device may best be explained in connection with a specific example. Assume for instance, the number to be set on devices B, BI, B2 and the number 289 as having been set on devices A, AI, A2. The dinerence between these two numbers represents the 174 intervening days for which no transaction cards are present. Assuming the last day's balance, namely that of the 115th day to be 675, the repeated transferring of this amount from one accumulator to the other may be graphically illustrated as follows:

Entering this last balance in this fashion will be the equivalent of entering 675 174 times. For each entry of 675 in normal order, magnet |01 will be energized to step device B ahead one place. During the fourth entry, device B will have the same setting as device A and upon closure of cam contact PI2, magnet 2|0 will become energized to release latch 200 permitting slider 20| to assume its intermediate position.

Energization of relay coil 2|2will close its points 2|2a in the reset motor shunt circuit. During the seven subsequent total and transfer cycles the number 6750 will be successively transferred and for each transfer operation magnet |01a will receive an impulse.

When device BI is in agreement with device Al, magnet 2|| will become energized to rock its latch 201 permitting the slider 20| to take its leftmost position and energization of relay 2|3 will close its points 2|3a in series with 2|2a.

The next operation will transfer 67500 during which operation magnet |01b will become energized to bring devices B2 and A2 into agreement. The consequent energization of relay coll 2|5 will cause closure of its points 2|5a so that upon the next closure of contact P| the shunt circuit of the reset motor will be completed and the machine will either stop or resume tabulating in accordance with the setting of the con-v trol switches. At the same time closure of points 2|0a will energize the reset clutch magnet |20 of the A device permitting it to be zeroized. A second pair of relay points 2|2b and 2|0b are wired in series` with points 2| 0a, so that magnet |20 is not energized until all orders of the B device are set to the positions of their corresponding orders in the A device.

During the first ensuing tabulating cycle, cam 209 will be rotated to restore slider 20| to its initial position. Devices B, Bl, B2 may be provided with transfer mechanism of any suitable form either electrical or mechanical to provide for the automatic advance of the higher denominational order device whenever the next lower device passes through zero.

While there has been shown and described and pointed out the fundamental novel features of the invention as applied to a single modication, it will be understood that various omissions and substitutions and changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention. It is the intention therefore to be limited only as indicated by the scope of the following claims.

I claim:

1. In a machine of the class described, accumulators, means for transferring data from one each transferring operation, entering means for the elements of the other of said pair of devices controlled by said analyzing means to enter therein amultidenominational number from a record, means for comparing the settings of the elements of the pair of devices and vmeans controlled by said comparing means for interrupting operation of the transferring means when all elements of one device correspond in setting to all elements of the other device.

2. In a machine of the class described, a pair of accumulators, 'means for transferring data from one accumulator to another, a multidenominational order counting device having tens carry 'mechanism and settable in accordance with the number of transfer operations performed by the machine, means for analyzing a record card for designations representing a multidenominational number, a denominationally ordered device controlled by said analyzing means to receive all the digits of said number, means for initiating and effecting an uninterrupted succession of operations of said transferring means, means operable during such operations for causing said settable counting device to be advanced one step for each operation, comparing means controlled by the several orders of both the counting device and the receiving device, and means controlled thereby when each order of the counting device has the same setting as the corresponding order of the receiving device for interrupting the operation of said transferring means, whereby the number of operations performed will be equal to the difference between the initial setting of the counting device and the setting of the receiving device.

3. The invention set forth in claim 2 in which resetting means is provided for vsaid number re- 'ceiving means and further means controlled by said comparing means, operable concurrently with said interrupting means, for rendering the resetting means effective to zeroize the receiving means.

4. The invention set forth in claim 2 in which the comparing means comprises a similar commutatorA structure for 'each order of both the settable and receiving devices, and a circuit connection extending serially through all structures when both devices are set to represent the same number.

5. In a machine of the class described, a pair of accumulators, means for transferring data from one accumulator to another, a column shift` mechanism included in said transferring means, a denominationally ordered counting device, entering means for each order, a denominationally ordered receiving device, means for entering an amount therein, a separate comparing means between each pair of related orders of the two devices, means for initiating and effecting anv uninterrupted succession of operations of said transferring means, means operated with said transferring lmeans for causing the entering means of one order of the counting device to enter a unit for each transferring operation..

means for disabling the entering means thereofl and rendering effective the entering means of the next order of the counting device, means controlled by the comparing means of said one order, when the same digit is standing in both orders of the related pair, for causing concurrent operation of the last-named means and of said column shift mechanism, and means controlled by all the comparing means when all orders of Vone device correspond in setting to all orders of the other device for interrupting. the operation of the transferring means.

HERMANN ADALBERT WEINLICH. 

